#satelliteimage — Public Fediverse posts

Iran reports at least 50 killed in latest US strikes

At least 50 people have been killed and more than 500 injured in Iran in the latest US…
#NewsBeep #News #BreakingNews #breakingnews #copernicus #Iran #satelliteimage
https://www.newsbeep.com/649696/

Camper Accidentaly Discovers Ancient Meteor Crater on Google Maps https://petapixel.com/2026/07/17/camper-accidentaly-discovers-ancient-meteor-crater-on-google-maps/ #satelliteimage #impactcrater #googlemaps #discovery #spacerock #asteroid #Crater #meteor #Space #News

Camper Accidentaly Discovers Ancient Meteor Crater on Google Maps https://petapixel.com/2026/07/17/camper-accidentaly-discovers-ancient-meteor-crater-on-google-maps/ #satelliteimage #impactcrater #googlemaps #discovery #spacerock #asteroid #Crater #meteor #Space #News

Swirls Above the Southern Ocean

In the Southern Ocean, obstacles are sparse. But the ice-cloaked volcano of Peter I Island is tall enough at over 1600 meters to disrupt the wind. At steady wind speeds between about 18 to 54 kilometers per hour, flowing past the island creates vortices that shed from one side and then the other. The result is a von Karman vortex street like the one seen here, flowing toward the upper right.

The overlaid ripple structures in the cloud layer are reminiscent of gravity waves. Perhaps, the wind’s passage made some lee waves that the vortices distorted? (Image credit: M. Garrison; via NASA Earth Observatory)

Swirls Above the Southern Ocean

In the Southern Ocean, obstacles are sparse. But the ice-cloaked volcano of Peter I Island is tall enough at over 1600 meters to disrupt the wind. At steady wind speeds between about 18 to 54 kilometers per hour, flowing past the island creates vortices that shed from one side and then the other. The result is a von Karman vortex street like the one seen here, flowing toward the upper right.

The overlaid ripple structures in the cloud layer are reminiscent of gravity waves. Perhaps, the wind’s passage made some lee waves that the vortices distorted? (Image credit: M. Garrison; via NASA Earth Observatory)

Brushstrokes in Blue

In early February 2026, cold weather swept into southern Florida. The cold fronts churned up sediment and cooled shallow waters, making them denser than the warmer waters of the open ocean. That caused the cooled water to sink off the continental shelf, carrying bright sediment with it. The satellite images of swirling sediment remind me of Impressionist paintings. (Image credit: M. Garrison; via NASA Earth Observatory)

Brushstrokes in Blue

In early February 2026, cold weather swept into southern Florida. The cold fronts churned up sediment and cooled shallow waters, making them denser than the warmer waters of the open ocean. That caused the cooled water to sink off the continental shelf, carrying bright sediment with it. The satellite images of swirling sediment remind me of Impressionist paintings. (Image credit: M. Garrison; via NASA Earth Observatory)

#WhiteHouse #PoliticalMemes #CurrentEvents #Meme #SatelliteImage #Construction #TrumpOnlyFucksUp #LetsGoTACO #NoKings #NoKingsJune14th #NACHO #TrumpEpsteinCoverup #POTUS #8647now #BeBest #FuckTrump

#WhiteHouse #PoliticalMemes #CurrentEvents #Meme #SatelliteImage #Construction #TrumpOnlyFucksUp #LetsGoTACO #NoKings #NoKingsJune14th #NACHO #TrumpEpsteinCoverup #POTUS #8647now #BeBest #FuckTrump

Blue Jewels and Gray Haze

Beginning in early spring, brilliant blue ponds form on Greenland’s ice sheets as meltwater gathers in indentations. This satellite image shows the ice east of Nordenskiöld Glacier, which is the tongue of ice projecting on the left side of the image. The center region of ice is darker, marked by soot, ash, and dirt left behind after previous ice layers have melted. These darker remains make the ice less reflective to sunlight; with less reflectivity, the ice absorbs more sunlight, melting faster. (Image credit: M. Garrison/NASA Earth Observatory)

Blue Jewels and Gray Haze

Beginning in early spring, brilliant blue ponds form on Greenland’s ice sheets as meltwater gathers in indentations. This satellite image shows the ice east of Nordenskiöld Glacier, which is the tongue of ice projecting on the left side of the image. The center region of ice is darker, marked by soot, ash, and dirt left behind after previous ice layers have melted. These darker remains make the ice less reflective to sunlight; with less reflectivity, the ice absorbs more sunlight, melting faster. (Image credit: M. Garrison/NASA Earth Observatory)

You Can Spell Your Name is Aerial Images Thanks to NASA https://petapixel.com/2026/04/27/you-can-spell-your-name-is-aerial-images-thanks-to-nasa/ #satelliteimage #interactive #Features #earthday #landsat #Space #News #NASA

You Can Spell Your Name is Aerial Images Thanks to NASA https://petapixel.com/2026/04/27/you-can-spell-your-name-is-aerial-images-thanks-to-nasa/ #satelliteimage #interactive #Features #earthday #landsat #Space #News #NASA

#usa #israel #iran : #warofaggression / #propaganda / #disinformation / #media / #learningprocess

(First!)

»“When a #satelliteimage is presented as visual evidence in the context of war, it can easily influence how people interpret events,” Professor Bo Zhao, from the University of Washington …

As AI-generated imagery grows increasingly convincing, it is “important for the public to approach such visual content with caution and critical awareness,” Prof Zhao said …«

https://www.straitstimes.com/world/middle-east/fake-ai-satellite-imagery-spurs-us-iran-war-disinformation

#usa #israel #iran : #warofaggression / #propaganda / #disinformation / #media / #learningprocess

(First!)

»“When a #satelliteimage is presented as visual evidence in the context of war, it can easily influence how people interpret events,” Professor Bo Zhao, from the University of Washington …

As AI-generated imagery grows increasingly convincing, it is “important for the public to approach such visual content with caution and critical awareness,” Prof Zhao said …«

https://www.straitstimes.com/world/middle-east/fake-ai-satellite-imagery-spurs-us-iran-war-disinformation

A fascinating fusion of #AerialPhotography, #DataScience and near history explores the events that shaped our world this year. From @[email protected] #journalism #aerialimagery #drone #DataJournalism #2025YearInReview #CurrentAffairs #HASS #SatelliteImage #AItools youtu.be/xiY3tnyTzpM?...

How The World Changed In 2025 ...

A fascinating fusion of #AerialPhotography, #DataScience and near history explores the events that shaped our world this year. From @[email protected] #journalism #aerialimagery #drone #DataJournalism #2025YearInReview #CurrentAffairs #HASS #SatelliteImage #AItools youtu.be/xiY3tnyTzpM?...

How The World Changed In 2025 ...

Chlorophyll Eddies

Instruments aboard NASA’s PACE mission are able to distinguish far more about phytoplankton blooms than previous satellites. This image shows chlorophyll concentrations in the Norwegian Sea in July 2025. Chlorophyll acts as a proxy for phytoplankton, which produce the chemical as they process sunlight into food and oxygen.

Despite their microscopic size, phytoplankton have enormous collective effects. Scientists estimate that phytoplankton produce as much as half of the Earth’s oxygen in addition to helping transport carbon dioxide from the atmosphere into the deep ocean. They are also the foundation of the marine food web, feeding nearly all life in the ocean. (Image credit: W. Liang; via NASA Earth Observatory)

#eddies #flowVisualization #fluidDynamics #physics #phytoplankton #satelliteImage #science

Chlorophyll Eddies

Instruments aboard NASA’s PACE mission are able to distinguish far more about phytoplankton blooms than previous satellites. This image shows chlorophyll concentrations in the Norwegian Sea in July 2025. Chlorophyll acts as a proxy for phytoplankton, which produce the chemical as they process sunlight into food and oxygen.

Despite their microscopic size, phytoplankton have enormous collective effects. Scientists estimate that phytoplankton produce as much as half of the Earth’s oxygen in addition to helping transport carbon dioxide from the atmosphere into the deep ocean. They are also the foundation of the marine food web, feeding nearly all life in the ocean. (Image credit: W. Liang; via NASA Earth Observatory)

#eddies #flowVisualization #fluidDynamics #physics #phytoplankton #satelliteImage #science

Whorls of Sea Ice

Fresh snow shines white on the southern end of Greenland in this satellite image, taken in late February 2025. Whorls of sea ice sit off the coast, where they trace out patterns that reflect the winds and ocean currents of the region. Arctic sea ice typically reaches its largest extent by early March before experiencing a long season of melting. Both the presence and absence of sea ice have a large effect on the Arctic regions. Sea ice helps dampen wave activity; without it, seas are higher and more dynamic, creating more aerosols that seed cloud cover in the Arctic and elsewhere. (Image credit: L. Dauphin; via NASA Earth Observatory)

#climateChange #fluidDynamics #oceanCurrents #physics #satelliteImage #science #seaIce

Whorls of Sea Ice

Fresh snow shines white on the southern end of Greenland in this satellite image, taken in late February 2025. Whorls of sea ice sit off the coast, where they trace out patterns that reflect the winds and ocean currents of the region. Arctic sea ice typically reaches its largest extent by early March before experiencing a long season of melting. Both the presence and absence of sea ice have a large effect on the Arctic regions. Sea ice helps dampen wave activity; without it, seas are higher and more dynamic, creating more aerosols that seed cloud cover in the Arctic and elsewhere. (Image credit: L. Dauphin; via NASA Earth Observatory)

#climateChange #fluidDynamics #oceanCurrents #physics #satelliteImage #science #seaIce

Buccaneer Archipelago

Off western Australian, hundreds of low-lying islands and coral reefs jut into the ocean as part of the Buccaneer Archipelago. Tides here have a range of nearly 12 meters, so water rips through the narrow channels as the tide ebbs and flows. These fast flows lift sediment that dyes the water a bright turquoise. (Image credit: M. Garrison; via NASA Earth Observatory)

#fluidDynamics #oceanTides #physics #satelliteImage #science #tides

Buccaneer Archipelago

Off western Australian, hundreds of low-lying islands and coral reefs jut into the ocean as part of the Buccaneer Archipelago. Tides here have a range of nearly 12 meters, so water rips through the narrow channels as the tide ebbs and flows. These fast flows lift sediment that dyes the water a bright turquoise. (Image credit: M. Garrison; via NASA Earth Observatory)

#fluidDynamics #oceanTides #physics #satelliteImage #science #tides

Growing Salty

Ngangla Ringco sits atop the Tibetan Plateau, breaking up the barren landscape with eye-catching teal and blue. This saline lake sits at an altitude of 4,700 meters, fed by rainfall, Himalayan runoff, and melting glaciers and permafrost. The lake, like many inland bodies of salt water, has no outflow. Instead, water evaporates from the lake, leaving behind any salts that were dissolved in it. Over time, those left-behind salts build up and make the lake ever saltier. (Image credit: NASA; via NASA Earth Observatory)

#astronaut #dissolution #evaporation #fluidDynamics #physics #salinity #satelliteImage #science

Growing Salty

Ngangla Ringco sits atop the Tibetan Plateau, breaking up the barren landscape with eye-catching teal and blue. This saline lake sits at an altitude of 4,700 meters, fed by rainfall, Himalayan runoff, and melting glaciers and permafrost. The lake, like many inland bodies of salt water, has no outflow. Instead, water evaporates from the lake, leaving behind any salts that were dissolved in it. Over time, those left-behind salts build up and make the lake ever saltier. (Image credit: NASA; via NASA Earth Observatory)

#astronaut #dissolution #evaporation #fluidDynamics #physics #salinity #satelliteImage #science

A Braided River

The Yarlung Zangbo River winds through Tibet as the world’s highest-altitude major river. Parts of it cut through a canyon deeper than 6,000 meters (three times the depth of the Grand Canyon). And other parts, like this section, are braided, with waterways that shift rapidly from season to season. The swift changes in a braided river’s sandbars come from large amounts of sediment eroded from steep mountains upstream. As that sediment sweeps downstream, some will deposit, which narrows channels and can increase their scouring. The river’s shape quickly becomes a complicated battle between sediment, flow speed, and slope. (Image credit: M. Garrison; animation credit: R. Walter; via NASA Earth Observatory)

#fluidDynamics #geophysics #physics #rivers #satelliteImage #science #sedimentTransport #sedimentation

A Braided River

The Yarlung Zangbo River winds through Tibet as the world’s highest-altitude major river. Parts of it cut through a canyon deeper than 6,000 meters (three times the depth of the Grand Canyon). And other parts, like this section, are braided, with waterways that shift rapidly from season to season. The swift changes in a braided river’s sandbars come from large amounts of sediment eroded from steep mountains upstream. As that sediment sweeps downstream, some will deposit, which narrows channels and can increase their scouring. The river’s shape quickly becomes a complicated battle between sediment, flow speed, and slope. (Image credit: M. Garrison; animation credit: R. Walter; via NASA Earth Observatory)

#fluidDynamics #geophysics #physics #rivers #satelliteImage #science #sedimentTransport #sedimentation

Satellite Photographs Another Satellite Over Chinese Military Base https://petapixel.com/2025/09/11/satellite-photographs-another-satellite-over-chinese-military-base/ #satelliteimagery #satelliteimage #militarybase #satellite #Space #china #News

Satellite Photographs Another Satellite Over Chinese Military Base https://petapixel.com/2025/09/11/satellite-photographs-another-satellite-over-chinese-military-base/ #satelliteimagery #satelliteimage #militarybase #satellite #Space #china #News

Thawing Out

Lake Erie, the shallowest of the Great Lakes, can almost completely freeze over in winter. In this satellite image of the lake in March 2025, about a third of the lake remains ice-covered, while sediment — resuspended by wind and currents — and phytoplankton swirl in the ice-free zone. In recent decades, scientists discovered that diatoms, one of the phytoplankton groups found in the lake, can live within and just below Erie’s ice, thanks to a symbiotic relationship with an ice-loving bacteria. This symbiosis allows the diatoms to attach to the underside of the ice and gather the light needed for photosynthesis. Even in the depths of winter, an ice-covered lake can teem with life. (Image credit: M. Garrison; via NASA Earth Observatory)

#biology #fluidDynamics #physics #phytoplankton #satelliteImage #science #sedimentation

Thawing Out

Lake Erie, the shallowest of the Great Lakes, can almost completely freeze over in winter. In this satellite image of the lake in March 2025, about a third of the lake remains ice-covered, while sediment — resuspended by wind and currents — and phytoplankton swirl in the ice-free zone. In recent decades, scientists discovered that diatoms, one of the phytoplankton groups found in the lake, can live within and just below Erie’s ice, thanks to a symbiotic relationship with an ice-loving bacteria. This symbiosis allows the diatoms to attach to the underside of the ice and gather the light needed for photosynthesis. Even in the depths of winter, an ice-covered lake can teem with life. (Image credit: M. Garrison; via NASA Earth Observatory)

#biology #fluidDynamics #physics #phytoplankton #satelliteImage #science #sedimentation

Baltic Bloom

June and July brings blooming phytoplankton to the Baltic Sea, seen here in late July 2025. On-the-water measurements show that much of this bloom was cyanobacteria, an ancient type of organism among the first to process carbon dioxide into oxygen. These organisms thrive in nutrient- and nitrogen-rich waters. Here, they mark out the tides and currents that mix the Baltic. Zoom in on the full image, and you’ll see dark, nearly-straight lines across the swirls; these are the wakes of boats. (Image credit: M. Garrison; via NASA Earth Observatory)

#eddies #flowVisualization #fluidDynamics #mixing #ocean #physics #phytoplankton #satelliteImage #science

Baltic Bloom

June and July brings blooming phytoplankton to the Baltic Sea, seen here in late July 2025. On-the-water measurements show that much of this bloom was cyanobacteria, an ancient type of organism among the first to process carbon dioxide into oxygen. These organisms thrive in nutrient- and nitrogen-rich waters. Here, they mark out the tides and currents that mix the Baltic. Zoom in on the full image, and you’ll see dark, nearly-straight lines across the swirls; these are the wakes of boats. (Image credit: M. Garrison; via NASA Earth Observatory)

#eddies #flowVisualization #fluidDynamics #mixing #ocean #physics #phytoplankton #satelliteImage #science

A Variety of Vortices

Winds parted around the Kuril Islands and left behind a string of vortices in this satellite image from April 2025. This pattern of alternating vortices is known as a von Karman vortex street. The varying directions of the vortex streets show that winds across the islands ranged from southeasterly to southerly. Notice also that the size of the island dictates the size of the vortices. Larger islands create larger vortices, and smaller islands have smaller and more frequent vortices. (Image credit: M. Garrison; via NASA Earth Observatory)

#flowVisualization #fluidDynamics #physics #satelliteImage #science #vonKarmanVortexStreet

A Variety of Vortices

Winds parted around the Kuril Islands and left behind a string of vortices in this satellite image from April 2025. This pattern of alternating vortices is known as a von Karman vortex street. The varying directions of the vortex streets show that winds across the islands ranged from southeasterly to southerly. Notice also that the size of the island dictates the size of the vortices. Larger islands create larger vortices, and smaller islands have smaller and more frequent vortices. (Image credit: M. Garrison; via NASA Earth Observatory)

#flowVisualization #fluidDynamics #physics #satelliteImage #science #vonKarmanVortexStreet

Capturing River Waves

Rainfall, ice jams, and dam breaks create surges of high flow that make their way down a river in a wave that stretches tens to thousands of kilometers in length. Traditionally, scientists monitor such flow waves using river gauges, which measure river height at specific locations. But gauges are few and far between on many rivers, so a group of researchers are supplementing that data with the SWOT (Surface Water and Ocean Topography) spacecraft. SWOT bounces microwaves off the water to precisely measure the water’s height, giving researchers a glimpse of the flow wave’s shape along the entire river.

In their paper, the team identify and describe flow waves on three different rivers — the Yellowstone, Colorado, and Ocmulgee rivers — ranging in height up to 9 meters and stretching up to 400 kilometers. (Image credit: CNES; research credit: H. Thurman et al.; via Gizmodo)

#flooding #fluidDynamics #geophysics #physics #rivers #satelliteImage #science

Capturing River Waves

Rainfall, ice jams, and dam breaks create surges of high flow that make their way down a river in a wave that stretches tens to thousands of kilometers in length. Traditionally, scientists monitor such flow waves using river gauges, which measure river height at specific locations. But gauges are few and far between on many rivers, so a group of researchers are supplementing that data with the SWOT (Surface Water and Ocean Topography) spacecraft. SWOT bounces microwaves off the water to precisely measure the water’s height, giving researchers a glimpse of the flow wave’s shape along the entire river.

In their paper, the team identify and describe flow waves on three different rivers — the Yellowstone, Colorado, and Ocmulgee rivers — ranging in height up to 9 meters and stretching up to 400 kilometers. (Image credit: CNES; research credit: H. Thurman et al.; via Gizmodo)

#flooding #fluidDynamics #geophysics #physics #rivers #satelliteImage #science

Earth is experiencing some of its shortest days on record. It’s unclear why

Ah, summer in the Northwest, when we enjoy those long, sun-drenched days. But o…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #America #AtlanticOcean #caribbean #Earth #earthscience #Environment #geographicillustration #illustration #image #map #NorthAmerica #pacificocean #photo #planet #PlanetEarth #relief #satelliteimage #Science #Sciences #SouthAmerica #world
https://www.newsbeep.com/us/27331/

South Island Sediments

In April and May late autumn storms ripped through Aotearoa New Zealand. This image shows the central portion of South Island, where coastal waters are unusually bright thanks to suspended sediment. We typically think of storm run-off as water, but these flows can carry lots of sediment as well. Here, the large amount of sediment is likely a combination of increased run-off from rivers and coastal sediment stirred up by faster river flows. (Image credit: W. Liang; via NASA Earth Observatory)

#flowVisualization #fluidDynamics #physics #satelliteImage #science #sedimentTransport #sedimentation

South Island Sediments

In April and May late autumn storms ripped through Aotearoa New Zealand. This image shows the central portion of South Island, where coastal waters are unusually bright thanks to suspended sediment. We typically think of storm run-off as water, but these flows can carry lots of sediment as well. Here, the large amount of sediment is likely a combination of increased run-off from rivers and coastal sediment stirred up by faster river flows. (Image credit: W. Liang; via NASA Earth Observatory)

#flowVisualization #fluidDynamics #physics #satelliteImage #science #sedimentTransport #sedimentation

Ponding on the Ice Shelf

Glaciers flow together and march out to sea along the Amery Ice Shelf in this satellite image of Antarctica. Three glaciers — flowing from the top, left, and bottom of the image — meet just to the right of center and pass from the continental bedrock onto the ice-covered ocean. The ice shelf is recognizable by its plethora of meltwater ponds, which appear as bright blue areas. Each austral summer, meltwater gathers in low-lying regions on the ice, potentially destabilizing the ice shelf through fracture and drainage. This region near the ice shelf’s grounding line is particularly prone to ponding. Regions further afield (right, beyond the image) are colder and drier, often allowing meltwater to refreeze. (Image credit: W. Liang; via NASA Earth Observatory)

#fluidDynamics #geophysics #glacier #iceShelf #melting #physics #planetaryScience #satelliteImage #science

Ponding on the Ice Shelf

Glaciers flow together and march out to sea along the Amery Ice Shelf in this satellite image of Antarctica. Three glaciers — flowing from the top, left, and bottom of the image — meet just to the right of center and pass from the continental bedrock onto the ice-covered ocean. The ice shelf is recognizable by its plethora of meltwater ponds, which appear as bright blue areas. Each austral summer, meltwater gathers in low-lying regions on the ice, potentially destabilizing the ice shelf through fracture and drainage. This region near the ice shelf’s grounding line is particularly prone to ponding. Regions further afield (right, beyond the image) are colder and drier, often allowing meltwater to refreeze. (Image credit: W. Liang; via NASA Earth Observatory)

#fluidDynamics #geophysics #glacier #iceShelf #melting #physics #planetaryScience #satelliteImage #science

Winter in Chicago

Fresh winter snow blankets Chicago in this satellite image. Over on Lake Michigan, ice dots the coastline out to about 20 kilometers from shore. Darker regions near land mark thinner ice being pushed outward by the wind. Further out, the ice appears white and may be thicker thanks to wind-driven ice piling up. (Image credit: M. Garrison; via NASA Earth Observatory)

#fluidDynamics #iceFormation #physics #satelliteImage #science #wind

Winter in Chicago

Fresh winter snow blankets Chicago in this satellite image. Over on Lake Michigan, ice dots the coastline out to about 20 kilometers from shore. Darker regions near land mark thinner ice being pushed outward by the wind. Further out, the ice appears white and may be thicker thanks to wind-driven ice piling up. (Image credit: M. Garrison; via NASA Earth Observatory)

#fluidDynamics #iceFormation #physics #satelliteImage #science #wind

Blooming in Blue

Summers in the Barents Sea — a shallow region off the northern coasts of Norway and Russia — trigger phytoplankton blooms like the one in this satellite image. The blue shade of the bloom suggests the work of coccolithophores, a type of plankton armored in white calcium carbonate. This type of plankton thrives in the warm, stratified waters of the late summer. Earlier in the year, the water tends to be nutrient-rich and well-mixed, conditions which favor diatom plankton species instead. Their blooms appear greener in satellite images. (Image credit: W. Liang; via NASA Earth Observatory)

#flowVisualization #fluidDynamics #mixing #physics #phytoplankton #satelliteImage #science #stratification

Blooming in Blue

Summers in the Barents Sea — a shallow region off the northern coasts of Norway and Russia — trigger phytoplankton blooms like the one in this satellite image. The blue shade of the bloom suggests the work of coccolithophores, a type of plankton armored in white calcium carbonate. This type of plankton thrives in the warm, stratified waters of the late summer. Earlier in the year, the water tends to be nutrient-rich and well-mixed, conditions which favor diatom plankton species instead. Their blooms appear greener in satellite images. (Image credit: W. Liang; via NASA Earth Observatory)

#flowVisualization #fluidDynamics #mixing #physics #phytoplankton #satelliteImage #science #stratification

looks like emirates to me
#contrails #SatelliteImage

Lines of Ice Eddies

In February 2024, the North Atlantic’s sea ice reached its furthest extent of the season, limning the coastline with tens of kilometers of ice. These images — both capturing the Labrador coast on the same day — show the swirling patterns marking the wispy edges of ice field. In this region, the ice is likely following an eddy in the ocean below. Eddies like these can form along the edges where warm and cold currents meet. An ice eddy is particularly special, though, as the water must be warm enough to fragment the sea ice, but not so warm that it melts the smaller ice pieces. (Image credit: top – NASA, lower – M. Garrison; via NASA Earth Observatory)

#astronaut #eddies #flowVisualization #fluidDynamics #physics #satelliteImage #science #seaIce

Fragments of sea ice tumble and swirl in this satellite image of Greenland’s east coast. In spring, Arctic sea ice journeys down the Fram Strait between Greenland and Svalbard. Along the way, large ice floes break — and melt — into smaller pieces. Large pieces of sea ice are visible closer to the coastline, but the smaller individual floes get, the wispier they appear in the satellite image. In the haziest portions of the image, the ice may be only meters across. In recent years, less and less Arctic sea ice has survived the journey southward, shifting the temperature and salinity of Arctic contributions to global ocean circulation. (Image credit: W. Liang; via NASA Earth Observatory)

https://fyfluiddynamics.com/2024/11/sea-ice-swirls/

#circulation #fluidDynamics #oceanCurrents #physics #satelliteImage #science #seaIce

Blue-green algae bloom in Lake Erie’s summer conditions. Unfortunately for those looking to spend summer on the water, the dominant organism in this bloom produces a toxin that “can cause liver damage, numbness, dizziness, and vomiting.” Bloom season can last from late June into October, depending on the how many nutrients get washed into the lake and when wind mixes the lake water in the fall. A new hyperspectral instrument aboard NASA’s PACE spacecraft will identify bloom species from space, helping scientists track, understand, and predict blooms like these. (Image credit: W. Liang; via NASA Earth Observatory)

https://fyfluiddynamics.com/2024/11/erie-algal-bloom/

#fluidDynamics #geophysics #mixing #physics #phytoplankton #satelliteImage #science

#israel #lebanon : #war / #hezbollah / #infrastructure / #destruction / #satelliteimage

„Data shows that more than 3,600 buildings in Lebanon appear to have been damaged or destroyed between 2 and 14 October 2024. This represents about 54% of the total estimated damage since cross-border hostilities between Israel and Hezbollah broke out just over a year ago.“

https://www.bbc.com/news/articles/cvgx3zjvjg3o

More than a tenth of Antarctica’s ice projects out over the sea; this ice shelf preserves glacial ice that would otherwise fall into the Southern Ocean and raise global sea levels. But austral summers eat away at the ice, leaving meltwater collected in ponds (visible above in bright blue) and in harder-to-spot slush. Researchers taught a machine-learning algorithm to identify slush and ponds in satellite images, then used the algorithm to analyze nine years’ worth of imagery.

The group found that slush makes up about 57% of the overall meltwater. It is also darker than pure snow, absorbing more sunlight and leading to more melting. Many climate models currently neglect slush, and the authors warn that, without it, models will underestimate how much the ice is melting and predict that the ice is more stable than it truly is. (Image credit: Copernicus Sentinel/R. Dell; research credit: R. Dell et al.; via Physics Today)

https://fyfluiddynamics.com/2024/10/slushy-snow-affects-antarctic-ice-melt/

#antarctica #climateChange #fluidDynamics #geophysics #glacier #ice #iceShelf #machineLearning #melting #physics #planetaryScience #satelliteImage #science

Incredible Photograph Reveals What Burning Man Looks Like from Space https://petapixel.com/2024/09/23/incredible-photograph-satellite-image-shows-what-burning-man-festival-looks-like-from-space-black-rock-desert/ #satellitephotography #europeanspaceagency #satelliteimage #burningman #Space #News

Incredible Photograph Reveals What Burning Man Looks Like from Space https://petapixel.com/2024/09/23/incredible-photograph-satellite-image-shows-what-burning-man-festival-looks-like-from-space-black-rock-desert/ #satellitephotography #europeanspaceagency #satelliteimage #burningman #Space #News

Captured in March 2024, this satellite image of the Gulf of Oman comes from an instrument aboard the PACE spacecraft. The picture of a phytoplankton bloom is not quite natural-color, at least not as our eyes would see it. Instead, engineers combined data taken from multiple wavelengths and adjusted it to bring out the fine details. It’s not what we’d see by eye, but every feature you see here is real.

Traditionally, the only way to identify the species of a phytoplankton bloom like this one is by taking a sample directly. But PACE’s instruments can detect hundreds of wavelengths of light, offering enough color detail that scientists may soon be able to identify and track phytoplankton species by satellite image alone. I wonder if distinguishing species could also provide some quantitative flow visualization from a series of these images. In the meantime, at least we can enjoy the view! (Image credit: J. Knuble; via NASA Earth Observatory)

https://fyfluiddynamics.com/2024/09/swirls-of-green-and-teal/

#eddies #flowVisualization #fluidDynamics #physics #phytoplankton #satelliteImage #science #turbulence

Lava fountains are spectacular, but most of the lava falls back into the crater or spatters just a bit around it. During the activity you still get some overflows, that typically cover one or two kilometers.

#Etna #SEC #lavaFountain #satelliteImage #MtEtna #Sentinel2

📢 We are on the cover of the international renowned GIM International Magazins!

Our #satelliteimage of Berlin was so great the colleagues took it on their cover 07/2023 including a short #Coverstory

Find it here:
https://www.gim-international.com/magazines/gim-issue-7-2023